Air Force

The net force will be Pressure x Surface Area of the top of the Coke can. We ignore the bottom of the can since it is presumably sitting on a flat surface so there is no air pressure there. The force on the sides contributes nothing to the net force as the force in any direction is balanced by the opposite force across the center of the can. $F=P\times S. A. =\SI{10.1}{\newton/\centi\meter^2} \times [\pi r^2]\si{\centi\meter^2} \\ =10.1\times [\pi(3)^2]\si{\newton} \\ =\boxed{\SI{285.57}{\newton}}$